Tractor



E. S. GEORGE. TRACTOR. FILED OCT. H, 1920.

Feb. 6, 19.23l

. 2 SHEETS-SHEET l ttousuf Feb. 6, 1923.

E. S. GEORGE TRACTOR. FILED OCT.

2 SHEETS-SHEET 2 Patented Feb. 6, i923,

Ni iii T. :T

EDWIN S. GEORGE, 0F PCNTIAC, MICHIGAN.

TRACTUR.

Application filed October 11, 1920. Serial No. 416,235.

To all 107mm. it may concern.'

Be it known that I, EDWINv S. GEORGE, a citizen of the United States of America, residing at Pon-tiac, in the county of Cakland and State of Michigan, have invented certain new and useful Improvements in Tractors, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to tractors and has for its primary object the obtaining of a smallvunit construction particularly adapted for gardening use. It is a further object to obtain a construction which may be cheaply manufactured and is largely composed of parts which `may be purchased on the open market. 'With these and other objects in view the invention comprises the construction as hereinafter set forth.

In the drawings:

Figure l is a side elevation partly in section of the machine;

Figure 2 is a sectional end elevation thereof;

Figure 3 is an enlarged sectional elevation of a portion of Figure 1.

The power unit for my improved tractor is preferably a small stationary internal combustion engine and preferably of the two-cycle and air-cooled type. As shown, this unit comprises the cylinder A, crank case B, base C, forming the fuel reservoir, combined fly wheel and fan D, and drive pulley E. This unit is mounted upon a frame, preferably formed of pipe and standard fittings, and comprising the spaced longitudinal bars F terminating in an upwardly inclined handle section G. Each of the side bars F has arranged therebeneath and parallel therewith a pipe H connected at opposite ends by the vertical pipe sections I. The sections F are also cross-connected at a plurality of points, as indicated at J, all of these parts being connected by elbows, unions, and other standard fittings. The engine'unit is mounted on this frame, being preferably secured thereto by clips K.

The tractor wheels L are journaled upon an axle M, said axle being secured midway between the upper and lower frame bars F and H by means of bracket fittings N. The wheels L are provided with internal gears O which are in mesh with pinions P on a jack shaft Q, this also'being a pipe section journaled in bracket members R. The pinions P are driven by thejack shaft through the medium of pawls S, which slidably engage a cross slot in the shaft and are adapted to engage with thel internal ratchet teeth T in the pinion, the arrangement being such that the rotation of the shaft in one direction will communicate rotary motion to the pinions, while at the same time said pinions are permitted to revolve independently of the shaft. U is a pulley upon the jack shaft which is driven by the pulley E through the medium of a belt V. W is a belt tightener pulley mounted upon a rock shaft VV, which is operated by a control located on the handle G. As shown, this control comprises the lever X pivotally secured to the handle and connected by a link X with a roc-k arm X2, which in turn is connected by the link X3 with the rock arm lV. Y is a battery box mounted on the frame adjacent to the engine. Z are brackets adjustably connected to the frame and which can be mounted upon any implement which is to be drawn by the tractor. These brackets Z are preferably clamped to corrugated or toothed plates Z, which are clamped to the frame, the brackets being correspondingly corrugated or toothed so as -to be retained in different positions of adjustment. Z3 are the clamping bolts by which the brackets are secured to the plates Z.

In use, the brackets Z are first attached 'to the implement (not shown), after which the engine is started. Power is not, however, transmitted to the drivers unless the control handle X is adjusted to operate the belt tightener, and the belt may therefore be used as a friction clutch which will gradually pick up the load as the tightener is operated. Normally, both of the drive wheels are driven equally through the medium of the jack shaft, pinions and internal gear wheels; but when turning corners, either' driven wheel is permitted to move in advance of the other, the guiding being accomplished by the handle What I claim as my invention is:

l. A motor driven tractor frame formed of pipe and standard fittings comprising spaced longitudinal bars, pipes arranged beneat-h and parallel to said bars, vertical pipe sections connecting said pipes and bars, cross bars, and standard fittings connecting said cross bars and longitudinal bars.

2. A motor driven tractor frame formed of pipe and standard fittings comprising spaced longitudinal bars terminating in an upwardly inclined handle section, pipes arranged beneath said bars, pipe sections connecting said pipes and bars, cross bars, and standard fittings connecting said cross bars to said longitudinal bars.

3. A motor` driven tractor frame comprising laterally spaced longitudinal bars, pipes arranged beneath and parallel to said bars, vertical pipe sections'connecting said pipes and bars, cross bars, standard ttings connecting said cross bars and longitudinal bars, bracket fittings secured to said pipes intermediate the ends thereof, an axle carried by said brackets, and drive Wheels carried by said axle.

In testimony whereof I alix my signature.

` EDWIN s. GEORGE. 

